n | a(n) |
---|---|
1 | 15 |
2 | 80 |
3 | 195 |
4 | 360 |
5 | 575 |
6 | 840 |
7 | 1155 |
8 | 1520 |
9 | 1935 |
10 | 2400 |
11 | 2915 |
12 | 3480 |
13 | 4095 |
14 | 4760 |
15 | 5475 |
16 | 6240 |
17 | 7055 |
18 | 7920 |
19 | 8835 |
20 | 9800 |
21 | 10815 |
22 | 11880 |
23 | 12995 |
24 | 14160 |
25 | 15375 |
26 | 16640 |
27 | 17955 |
28 | 19320 |
29 | 20735 |
30 | 22200 |
31 | 23715 |
32 | 25280 |
33 | 26895 |
34 | 28560 |
35 | 30275 |
36 | 32040 |
37 | 33855 |
38 | 35720 |
[15,80,195,360,575,840,1155,1520,1935,2400,2915, 3480,4095,4760,5475,6240,7055,7920,8835,9800, 10815,11880,12995,14160,15375,16640,17955,19320, 20735,22200,23715,25280,26895,28560,30275,32040, 33855,35720] |